Multilingual Website/Application Development Guidance

I'm looking for an experienced freelancer who can guide me in developing a bilingual website/application. I need the platform to support both English and German. As I'm not sure about the platform to use, I'm definitely open to suggestions. Language to be used: JS / Python

Key Tasks:
- Recommend a suitable platform for the development
- Ensure the platform supports English and German (for now)

Skills and Experience:
- Fluent in English and German
- Proficient with various development platforms
- Experience with localization and internationalization
- Strong communication and guidance skills